Acne Vulgaris vs Folliculitis

How to tell the difference — key features compared side by side.

Feature
Acne Vulgaris
Folliculitis
Category
Common
Common
Key feature
The most common skin condition worldwide - affects 85% of teenagers. Caused by clogged pores, bacteria, hormones, and inflammation.
Infected or inflamed hair follicles causing red, tender bumps. Common from shaving, tight clothing, or hot tubs.
Risk factors
Puberty and hormonal changes; Family history of acne; Hormonal fluctuations (menstrual cycle, PCOS)
Shaving (razor bumps); Tight clothing causing friction; Hot tub or pool use
Action needed
Acne not improving with over-the-counter benzoyl peroxide and retinoids after 2-3 months
Folliculitis that does not improve in 1-2 weeks

Acne Vulgaris

Acne vulgaris is the most common skin condition, affecting approximately 85% of people between ages 12 and 24. It occurs when hair follicles become clogged with dead skin cells and sebum (oil), creating an environment where the bacterium Cutibacterium acnes thrives, triggering inflammation.

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Folliculitis

Folliculitis is inflammation or infection of hair follicles, presenting as small red or white-headed bumps or pustules clustered around hair follicles. It can occur anywhere hair grows but is most common on the face (shaving area), scalp, thighs, buttocks, and trunk.

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Does yours look more like acne vulgaris?

Quick self-check

Does this look like acne vulgaris? Answer 2 questions.

Do you have a mix of blackheads, whiteheads, and red bumps?

Is it mainly on the face, chest, or back (areas with many oil glands)?

Still not sure?

Our full ABCDE checker evaluates 5 clinical criteria dermatologists use.

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